6.1-Liter Engines: The only 6.1-liter V8 engine produced by Ford Motor Company is that of the 370 cubic inch V8 big block engine. This 370 big block Ford engine was for sale between 1977-1991 and is known as Ford’s smallest displacement big block V8 engine.
370 CID - The Ford 370 engine is known primarily as a truck engine thus it came with heavy-duty engine internals. This 370 cubic inch V8 engine was featured in the 1977-1991 Ford medium-duty F-series trucks, Ford F600, Ford F700, Ford B-series, Ford C600, Ford C700, Ford C800, Ford, L600, Ford L700, and Ford L800 vehicles.